The article indicates that usually there exists no correspondence between the term and its conception illustrated by the case of loangraph and its related term orthograph. Different conceptions of contemporary Loangraph, namely, “diachronic usage relation”, “relation of form and meaning”, “prevailing usage in an era”, have inherited some views produced in the academic history, which includes Xu Shen’s loangraph of “benwuqizi”, Wang Yun’s “shengjie”, Duan Yucai’s “three changes” of loangraph, and Zhu Junsheng’s “three sources” of loangraph. By listing examples of misunderstanding and obscure caused by the different comprehension of the loangraph term, the article analyzes its objective linguistic foundation, stating that in the use of the term, the same conceptual meaning of the term should be taken as the criterion, otherwise it will constitute exchange barriers and cause unnecessary contradictions and arguments.